Definitions, differences, simple examples, basic workflow, and common mistakes.

A clear 90-second answer

Say this first: requirements clarification should be explained through its purpose, the boundary where it applies, and the evidence that shows it is working.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply requirements clarification, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → requirements clarification → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: functional vs non-functional requirements is a choice between approaches with different strengths. The useful answer is the decision rule, not a dictionary definition.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply functional vs non-functional requirements, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Choose the option that fits the workload and constraints; do not present one option as universally superior.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → functional vs non-functional requirements → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: architecture trade-offs should be explained through its purpose, the boundary where it applies, and the evidence that shows it is working.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply architecture trade-offs, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → architecture trade-offs → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: monolith vs microservices is a choice between approaches with different strengths. The useful answer is the decision rule, not a dictionary definition.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply monolith vs microservices, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Choose the option that fits the workload and constraints; do not present one option as universally superior.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → monolith vs microservices → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: The important point about API gateway pattern is how an engineer recognizes the unsafe path early and prevents it from becoming customer impact.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply API gateway pattern, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Start with containment and evidence. Changing several variables at once makes the incident harder to understand.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → API gateway pattern → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: event-driven architecture should be explained through its purpose, the boundary where it applies, and the evidence that shows it is working.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply event-driven architecture, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → event-driven architecture → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: synchronous vs asynchronous communication is a choice between approaches with different strengths. The useful answer is the decision rule, not a dictionary definition.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply synchronous vs asynchronous communication, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Choose the option that fits the workload and constraints; do not present one option as universally superior.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → synchronous vs asynchronous communication → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: database selection should be explained through its purpose, the boundary where it applies, and the evidence that shows it is working.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply database selection, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Concrete check

SELECT COUNT(*) AS rows, MAX(loaded_at) AS freshest FROM <table>;

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → database selection → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: “caching design is the part of the system that helps us deliver the intended outcome safely and predictably. I would explain it using a small customer scenario, then show the check that proves it worked.”

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply caching design, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → caching design → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: The important point about high availability is how an engineer recognizes the unsafe path early and prevents it from becoming customer impact.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply high availability, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Start with containment and evidence. Changing several variables at once makes the incident harder to understand.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → high availability → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: disaster recovery should be explained through its purpose, the boundary where it applies, and the evidence that shows it is working.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply disaster recovery, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → disaster recovery → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: RTO and RPO is a choice between approaches with different strengths. The useful answer is the decision rule, not a dictionary definition.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply RTO and RPO, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Choose the option that fits the workload and constraints; do not present one option as universally superior.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → RTO and RPO → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: multi-region architecture should be explained through its purpose, the boundary where it applies, and the evidence that shows it is working.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply multi-region architecture, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → multi-region architecture → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: “security by design is the part of the system that helps us deliver the intended outcome safely and predictably. I would explain it using a small customer scenario, then show the check that proves it worked.”

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply security by design, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Concrete check

Review the least-privilege policy, then test the denied path as well as the allowed path.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → security by design → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: The important point about identity and access architecture is how an engineer recognizes the unsafe path early and prevents it from becoming customer impact.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply identity and access architecture, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Start with containment and evidence. Changing several variables at once makes the incident harder to understand.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Concrete check

Review the least-privilege policy, then test the denied path as well as the allowed path.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → identity and access architecture → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: integration patterns should be explained through its purpose, the boundary where it applies, and the evidence that shows it is working.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply integration patterns, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → integration patterns → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: observability architecture is a choice between approaches with different strengths. The useful answer is the decision rule, not a dictionary definition.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply observability architecture, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Choose the option that fits the workload and constraints; do not present one option as universally superior.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → observability architecture → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: cost optimization should be explained through its purpose, the boundary where it applies, and the evidence that shows it is working.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply cost optimization, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → cost optimization → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: “cloud migration strategy is the part of the system that helps us deliver the intended outcome safely and predictably. I would explain it using a small customer scenario, then show the check that proves it worked.”

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply cloud migration strategy, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → cloud migration strategy → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: The important point about legacy modernization is how an engineer recognizes the unsafe path early and prevents it from becoming customer impact.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply legacy modernization, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Start with containment and evidence. Changing several variables at once makes the incident harder to understand.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → legacy modernization → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: vendor evaluation should be explained through its purpose, the boundary where it applies, and the evidence that shows it is working.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply vendor evaluation, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → vendor evaluation → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: architecture decision records is a choice between approaches with different strengths. The useful answer is the decision rule, not a dictionary definition.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply architecture decision records, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Choose the option that fits the workload and constraints; do not present one option as universally superior.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → architecture decision records → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: stakeholder communication should be explained through its purpose, the boundary where it applies, and the evidence that shows it is working.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply stakeholder communication, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → stakeholder communication → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: “technical debt management is the part of the system that helps us deliver the intended outcome safely and predictably. I would explain it using a small customer scenario, then show the check that proves it worked.”

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply technical debt management, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• State the constraint that could change your decision, such as scale, data sensitivity, recovery target, or team ownership.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → technical debt management → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.

A clear 90-second answer

Say this first: The important point about solution governance is how an engineer recognizes the unsafe path early and prevents it from becoming customer impact.

Use a real scenario

Imagine a service being expanded from one product team to several dependent teams. The team must decide how to apply solution governance, verify the result, and explain the user impact. For a Solutions Architect, attach the explanation to an architecture decision record and NFR matrix.

Show judgment

• name the concept, give one concrete use, and say how you would check the result.
• Start with containment and evidence. Changing several variables at once makes the incident harder to understand.
• Call out coupling, unclear ownership, or an irreversible vendor choice and the control that reduces it.

Evidence to mention

Track SLO attainment, delivery lead time, and total operating cost. Say what baseline you compared against, what would trigger a rollback or escalation, and who owns the follow-up.

request or change → guardrail / validation → solution governance → observable result → owner review

Practice prompt: Keep the scope small. Do not claim production ownership you have not had.